﻿using System;
using System.Linq;


class ReturnLastDidit
{
    static string ReturnLastDigitOfInt(int number)
    {
        char[] digits = number.ToString().ToCharArray();
        char lastDigit = digits[digits.Length - 1];
        string returnValue = "";

        switch (lastDigit)
        {
            case '1':
                returnValue = "one";
                break;
            case '2':
                returnValue = "two";
                break;
            case '3':
                returnValue = "three";
                break;
            case '4':
                returnValue = "four";
                break;
            case '5':
                returnValue = "five";
                break;
            case '6':
                returnValue = "six";
                break;
            case '7':
                returnValue = "seven";
                break;
            case '8':
                returnValue = "eight";
                break;
            case '9':
                returnValue = "nine";
                break;

            default: 
                returnValue = "zero";
                break;
        }
        return returnValue;
    }

    static void Main()
    {
        int number = int.Parse(Console.ReadLine());
        Console.WriteLine(ReturnLastDigitOfInt(number));
    }
}

